amcharts - The best Flash Chart

Sample :



There are more type of chart free for you and just to visit amchart
I give this product to TheGreatestPost award.

AmCharts is a set of Flash charts for your websites and Web-based products. AmCharts can extract data from simple CSV or XML files, or they can read dynamic data generated with PHP, .NET, Java, Ruby on Rails, Perl, ColdFusion, and many other programming languages.

Website : http://www.amcharts.com/